Messages in this thread | | | Date | Thu, 21 Oct 2021 08:57:18 +0800 | From | kernel test robot <> | Subject | [tj-misc:bpf-task-local-storage-prealloc 3/3] kernel/bpf/bpf_task_storage.c:371:20: error: use of undeclared identifier 'task_storage_map_ops' |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/tj/misc.git bpf-task-local-storage-prealloc head: 5e3ad0d4a0b0732e7ebe035582d282ab752397ed commit: 5e3ad0d4a0b0732e7ebe035582d282ab752397ed [3/3] bpf: Implement prealloc for task_local_storage config: hexagon-randconfig-r041-20211019 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 9660563950aaed54020bfdf0be07e7096a9553e4) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/tj/misc.git/commit/?id=5e3ad0d4a0b0732e7ebe035582d282ab752397ed git remote add tj-misc https://git.kernel.org/pub/scm/linux/kernel/git/tj/misc.git git fetch --no-tags tj-misc bpf-task-local-storage-prealloc git checkout 5e3ad0d4a0b0732e7ebe035582d282ab752397ed # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
>> kernel/bpf/bpf_task_storage.c:371:20: error: use of undeclared identifier 'task_storage_map_ops' smap->map.ops = &task_storage_map_ops; ^ 1 error generated.
vim +/task_storage_map_ops +371 kernel/bpf/bpf_task_storage.c
355 356 static struct bpf_map *task_storage_map_alloc(union bpf_attr *attr) 357 { 358 struct bpf_local_storage_map *smap; 359 int err; 360 361 smap = bpf_local_storage_map_alloc(attr); 362 if (IS_ERR(smap)) 363 return ERR_CAST(smap); 364 365 if (!(attr->map_flags & BPF_F_NO_PREALLOC)) { 366 /* We're going to exercise the regular update path to populate 367 * the map for the existing tasks, which will call into map ops 368 * which is normally initialized after this function returns. 369 * Initialize it early here. 370 */ > 371 smap->map.ops = &task_storage_map_ops; 372 373 percpu_down_write(&threadgroup_rwsem); 374 list_add_tail(&smap->prealloc_node, &prealloc_smaps); 375 err = task_storage_map_populate(smap); 376 percpu_up_write(&threadgroup_rwsem); 377 if (err) { 378 bpf_local_storage_map_free(smap, 379 &bpf_task_storage_busy); 380 return ERR_PTR(err); 381 } 382 } 383 384 smap->cache_idx = bpf_local_storage_cache_idx_get(&task_cache); 385 return &smap->map; 386 } 387
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